Combining and mixing tube.



' Hm 872,580 PATEETTED mac? 3, 190?.

E. H. PALMER. COMBINING AND MIXING TUBE.

APPLICATION FILED APR.12.'1907.

witnesses EDWARD H. PALMER, or DETROIT, MICHIGAN;

commune AND inxinemn.

Specification of Letters Patent.

Patented Dec. 3, 190

Application filed April 12. 1907. Serial to. 367.750.

To'a ll whom it may concern: y

Be it known that I, EDWARD H, PALMER,

a citizen of the United States, residing'at Detroit, county of \Vayne, State of Michigan, have invented a certain new and useful Improvement in Combining and Mixing Tubes, and declare the followin to be a full, clear, and exact description 0 the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to a combining and mixing tube, and the object of my improvements is to provide an improved tube adapted to be used with aninverted incandescent mantle lamp of that kind in'which' an inflammable liquidis vaporized and mixed with air and burned to heat the mantle. By my improvements, 1 do away with the noise usually Iphlroduced by the rushing gases, and

thoroug Y mix the vapor and air;

In the drawings :Figure 1, is an elevation of a lamp of the inverted incandescent mantle type to which my invention is ap lied. Fig. 2,'is a sectional view of'a part of said lamp with a mixingt-ube embodying my invention secured thereto. Fig. 3, is an end view of said mixingtube. -F1 4, is an elevation of the interior tube an tip.

L is the sheet metal portion of the lamp,

and g is the globe secured to the lower end of the sheetmetal ortion L. 'm is the mantlia;

C is the supply tube for gas or inflammable fluid, as gasolene.

A is the delivery nozzle, and B is the needle valve for controlling the flow of such fluid or gas. The nozzle A is convex inward forming a receptacle, around its inner edge, for any dirt that ma' fall on it. I

c indicates fol s of gauze which is placed as a strainer in the tube C.

D is an air chamber open to the atmosphere, into which chamber the nozzle extends. y r

E is the tube proper, and G indicates an enlarged lower portion of the tube E. The bore of the tube E is axiallyiin line with the nozzle A, so that vapor delivered from said nozzle is projected into the tube E, carrying with it air fromthe chamber D.

F is a tube coaxial with thetube E, its u per end screwin into the lower end of-t e smaller part of 518 tube E. The inner tube F extends into the enlargement G of the tube gether with the the enlargement G; a K

- f are holes throu h the inner tube F communicating with t e upper portion of the space between the inner wall of the enlarge 'ment Gand the tube F, at the upper end thereof.

' H is a tip screwed into the lower end of the inner tube F. The tipF has a small coaxial cavity I formed in it from its up or end-and E, coaxial therewith, leaving a spacearound I it between its outer wall and the inner wall of is provided with slots or saw ke s h'crossing' each other and extending in from its lower end and communicati with the cavity I. The lower end of'thetip H is enlarged, so as to nearly, .but not quite, fill the lower end of the tube EG. An annularspaoe J is left bei twe'en the'lower end of the tip H and the end ofthetubeEG.-

R is a metal ferrule placed over the end of the tip F to separate theexits from the slots 'hfirom the annular space J-.

v The operation of'the above described device is as follows -If fluidis used it is va rized and issues in a jet of vapor or gas the tube E, carrying with it a proper amount of for combustion, and the air and vapor are thoroughly mixed in said tube, part of the air and vapor passing through the holes f and issuing largely through the annular s ace J, and a part passing downward and through .the cavity I and saw kerfs h, and tortion iss through the annular space" burning ad acent to the lower endof the mixing tube EG,so as to heat the mantle M. By this constructioni,

the stream of vapor and air is divided its velocity graduall diminished, so that it makes no noise, w l e at the same time the vapor;1 and air is completely and properly mixe omthe nozzle A, which projects the vapor into' The lamp may be ted by inse the I torch in the chamber The flame carried down through the tube E G, and the mixture will continue to burn at the end of said tube. 5 r

The tip has a small passage at its center, forming its bore, and is concave outward to facilitate the insertion of a wire, to clean out the bore of said tip.-

What I claim is: p 1. In a device of the kind described, the

' combination of concentric tubes spaced to produce an annular chamber, pass es through the inner tube,a tip provided wit a cross slot inserted in the end of thevinner tube and forming between itself and the outer tube an annular delivery passage for said annular chamber, said cross slot forming an inner passage surrounded by said annular passage, substantially as described.

2. In a device of the kind described, the combination of an inner and outer tube arranged to form an intermediate chamber, holes through said inner tube leading to said chamber, the lower end of said inner tube being arranged to form an exit between it and the outer tube, and a slot h in the-lower end of said inner tube communicating with the interior thereof and with. said intermediate chamber. a

3.. In a device ofthe kind described, the combination of an inner and outer tube arranged to form -an intermediate chamber, holes through'said inner tube to saidchaniber, the lower end of said inner tube'being arranged to form an exit between it and the outer tube, a slot h in the. lower end of said .inner tube connectingwith. the interior thereof and with said intermediate chamber, and a ferrule over the end of said inner tube. 4. In a device of the kind described, concentric tubes spaced to roduce an annular chainber, the inner tube eing provided with tip and dividing the said annular passa e from the passage produced by said slot, su stantially as described.

' Intestimony whereof, I sign this specification in the presence of two witnesses.

, EDWARD H. PALMER.

Witnesses: I

ALICE TOWNSEND, ELLIQIIT J STODDARD. 

